deinterlacing [was: Re: [MPlayer-dev-eng] Re: ccache]

[Michael Niedermayer]

Hi

On Sunday 05 January 2003 15:37, Arpi wrote:
> Hi,
>
> > > > 3)
> > > > The "color interlacing" can happen if an YUV411 Signal is converted
> > > > to RGB or vice versa. You have to use different algorithms for
> > > > interlaced and progressive material. For progressive material the
> > > > first UV-Line contains color information for Y-Line 1+2, for
> > > > interlaced material it is for Y-Line 1+3.
> > >
> > > hmm. do our postproc filters handle this proeprly?
> > > probably not, since it was designed for YV12 mpegs.
> >
> > ?!
> > YV12 has chroma interlaced too if luma is interlaced, (see mpeg4 or 2
> > spec) our pp filter deinterlaces this correctly
>
> i know it deint yv12 correctly, the question was about YUV411.
hmm seems the 1+3 / 1+2 nonsense confused me, as YUV411 has a line chroma for 
each line luma but the text above says its line 1 luma for line 1+2 chroma

iam not completly sure where our deinterlacer could have a problem, either 
chorma is interlaced or its not, both are supported, as chroma filtering is 
optional

[...]

Michael